The first generation of Audi 100 was introduced in 1968. Known as the C1, the first generation 100 was a range of full size luxury sedans and coupes that were powered by a series of inline four engines. The most notable 100 variant was the Coupe S, which was never sold in the United States. Production of the first generation 100 ended in 1976, and it was replaced by the Second Generation Audi 100.